你必须能够适应不断变化的市场条件。如果你不能适应,你就无法生存。
If everything was perfect, you would never learn and you would never grow.
"The changes we dread most may contain our salvation."
The true value of a mathematician lies in the problems they leave behind.
The Moving Finger writes; and, having writ, Moves on: nor all thy Piety nor Wit Shall lure it back to cancel half a Line, Nor all thy Tears wash out a Word of it.